Answer:
I think the answer is b
Step-by-step explanation:
there are the same number of squares in both shapes.
A graph shows the solutions to be
(x, y) = (-6, 312) or (6, 312)To solve algebraically, remove a factor of 2 from the second equation and use that expression to substitute for y in the first equation.
10x^2 -(8x^2 +24) = 48
2x^2 = 72
x = ±√(72/2) = ±6
y = 8*36 +24 = 312
Answer:
10.08
Step-by-step explanation:
8.64 divided by 12 is 0.72
then you multiply .72 by 14 and you get
10.08
Option B 6x-7y = -11 is correct
Step-by-step explanation:
We need to write the equation of the given line in standard form.
The points are (1/2,2) and (3,1)
The equation used is:

where m is the slope.
Finding slope :

x₁= 1/2, y₁=2, x₂=-3, y₂=-1
Putting values:

Now taking point (1/2,2) and s;ope m = 6/7 finding equation:


So, Option B 6x-7y=-11 is correct
Keywords: Standard form of equation
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We can use the formula d = rt in getting the algebraic equation for the two cars where; d = distance, r = rate, t = time.
Given:

(blue car) = 35 miles per hour

(red car) = 70 miles per hour
distance between the two towns = 140 miles

(blue car)= no. of hours the blue car travels

(red car) = no. of hours the red car travels
Linear equation for the blue car




blue car travels 4 hours from town A to town B.
Linear equation for the red car




red car travels 2 hours from town A to town B.